Adjusting means for cutting steels



May 20, 1941. J. H. M. MICHON 2,242,363

ADJUSTING MEANS FOR CUTTING STEELS Filed Oct. 31, 1940 2 Sheets-Sheet 1j? is 5 Z; L? I dffilMM'ckam y 1941- J. H. M. MICHON 2,242,363

ADJUSTING MEANS FOR CUTTING STEELS Filed Oct. 31, 1940 2 Sheet-Sheet 2JEJI- Mafia Patented May 20, 1941 UNITED STATES PATENT OFFICE- ADJUSTING- MEAN :fjfiCUTTIN G S'I EELS Application October 31, 1940,'Serial No. 363,782

12 Claims. (01. 164-118) This invention relates to means for efl'ectinglateral adjustment of the cutting steels of metal blanking, trimming andpunching machines of that general class shown and described in UnitedStates Letters Patent, No. 2,213,919, issued to me on the 3rd day ofSeptember, 1940, the present invention being an improvement thereon.

The object of the invention is to provide means whereby after lateraladjustment of the movable member or cutting steel has been effected, thedowel or connecting pin may be removed to permit detachment andresharpening of the cutting steel or for other purposes withoutdisturbing said adjustment.

A further object 'is to provide cutting steel adjusting means includinginner and outer expansible eccentric sleeves and a central lockingsleeve adapted to receive a dowel pin, said central sleeve serving tolock the eccentric sleeves in a fixed position of adjustment and thecutting steel and associated parts being removable as a unit from thedie shoe so as to obviate the necessity of readjusting the eccentricsleeves when the cutting steel is again positioned on the die shoe.

A further object is to make the dowel of tubular formation with theinterior walls at the lower end thereof threaded for engagement with acorrespondingly threaded extracting pin so that, by positioning theextracting pin within the dowel and rotating said pin, the dowel will bewithdrawn from its socket in the die shoe.

A still further object of the invention is gen-' erally to improve thisclass of devices so as to increase their utility, durability andefliciency.

In the accompanying drawings'forming a part of this specification and inwhich similar numerals of reference indicate corresponding parts in allthe figures of the drawings:

Figure 1 is a top plan view of the cutting steel adjusting mechanismembodying the present invention,

Figure 2 is a vertical sectional view,

Figure 2 is a similar view showing the extracting pin within the tubulardowel and said dowel partially withdrawn from its seat within the dieshoe,

Figure 3 is a top plan view illustrating another form of the invention,

Figure 4 is a vertical sectional view taken on a horizontal median ofFigure 3,

Figure 5 is a vertical sectional view showing how a combination screwand dowel pin can be used in connection with the adjusting mechanism,

Figure 6 is a top plan view of Figure 5,

Figure 7 is a vertical sectional view showing how the extracting pinoperates to withdraw or extract a hollow dowel where the adjustingsleeves are not used,

Figure 8 is a perspective view of the dowel and extracting pin detached,

Figure 9 is a side elevation of a combined dowel extracting tool andwrench used in connection with the device, and

Figure 10 is a modified form of tool.

The improved mechanism forming the "subject-matter of the presentinvention may be used in connection with any type of metal piercing ortrimming machine, and in the drawings a portion of a conventionalmachine is illustrated, in which 5 designates the movable member orcutting steel having a socket 6 formed therein and I the lowerstationary member or die shoe provided with a seat or socket 8.

The cutting steel adjusting mechanism comprises an outer longitudinallysplit eccentric .sleeve 9 fitting within the socket 6 and having innerand outer parallel walls, as shown. Fitted within the outer eccentricsleeve 9 is an inner longitudinally split eccentric sleeve Ill having anouter straight wall which bears against the adjacent straight wall ofthe outer sleeve and provided with an inner tapered wall II, the lowerend of which is threaded, as indicated at l2. The upper endsof the innerand outer expansible eccentric sleeves are formed with a series ofcircumferential recesses or notches l3 adapted to receive the end of ascrew-driver or other suit-' able tool for rotating the same when it isdesired to adjust the cutting steel laterally with respect to the dieshoe. Fitting within the inner sleeve I0 is a central locking sleeve l4having its outer wall tapered to correspond with the tapered wall ll ofthe inner eccentric sleeve and provided at its lower end withcircumferential threads l5 which engage the threads l2 on the innersleeve, as best shown in Figure 2 of the drawings, so

that, after the inner and outer eccentric sleeves have been adjusted tomove the cutting die laterally with respect to the die shoe, said innerand outer sleeves will be expanded against the walls of the opening 6and thus lock said sleeves in a fixed position of adjustment thereby topermit removal of the cutting steel when it is desired to resharpen thesame without in any manner disturbing said adjustment. The upper end ofthe locking sleeve I4 is provided with an interior hexagonal socket Hito permit the sleeve to be rotated with a wrench or other suitable toolto efiect locking of the parts. Disposed within the asindicatedatil.Asameansforextractingorpartiallyelevatinlthetubulardowelpln H from thedieshoe'l,

thereisprovided an extracting pin ll having its 1 lower'end threaded atII for engagement with the interior threads of the dowel. The upper endof the extracting pinis provided with an angularhead-li while the lower.end thereof is formed with a' conical boss 22 adapted to bear againstthe central portion of the lower wall ofthesocketlsothatbyinsertingtheextracting" pin within the tubular doweland rotating said pin, the hollow dowel maybe quickly withdrawnorextracted from its seat in the die shoe. It will thus be seenthat,after the parts are assembled, lateral adjustment of the cuttingsteel with respecttothedieshoemaybereadily'eifected;

by rotating the inner and outer eccentric sleeves and after theprcperadiustment has been eifected the parts will be eifectuallylocked'in said adjusted position by rotating the central locking sleeve.It will, furthermore, be noted that, by

' inserting the extracting pin is within the hollow dowel and rotatingsaid extracting pin, the lower end of the dowel may be elevated toaposition above the upper surface of the die shoe 1 so as to permit thecutting steel together with the dowel and adjustingmechanism to bereadily slid laterally-as a uniton the die shoe without in anyumannerdisturbing the prior adjustment of the parts. After the cutting steelhas been'removed and resharpe'ned or any other repairs made thereto,said cutting die together with the dowel pin and eccentric sleeves mayagain be positioned as a unit-on th'e'die shoe and the without liabilityof disturbing the previous adnecting' the cutting steel'and die shoe,and it'wlll be seen that by rotating the pin it until the boss 2contacts with the lower wall of the socket inthe die shoe, said dowelpin will be withdrawn from its socket and elevated to a position abovethe upper surface of the die shoe so aa'to permit ready removal of thecutting steel to effect resharpening thereof or for other purposes. Itwill, therefore, be understood that the extracting pin may be used forremoving dowel pins regardless of whether the eccentric sleevesfare'associated therewith or not.

In Figure '9 of the drawings, 'there'is illustrated a combined wrenchand dowel pin extracting toolwhich may be used to advantage in effectingadjustment of the different parts of the device.-''- The tool ispreferably formed from a single'length of metal having an angularextenslon ll constituting a handle and p'rovidedwith a square terminalforming a wrench. The shank of the tool is exteriorly threaded at 31 forengagement with the interior threads on the hollow dowel pin and isprovided with a-te'rminal conical boss 3| adapted to bear against andcenter the tool within the lower wall of the socket in the die shoe, aswill be readily understood. A

" different form of tool is illustrated in Figure 10dowelllmovedtoapositionwithinthesocketl justment of the eccentricsleeves. This is a decided advantage as in all prior devices, as far asI am aware, after the cutting steel has been re-] moved from the dieshoe, further adjustments must be made owing to the fact that'thesleeves are not locked in adjusted position prior to rea moval of thecutting steel.

In Figures 3 and 4 of the drawings, there is illustrated a modified formof the invention, in which the notches II in the inner and outerexpansible sleeves are omitted and the upper ends of the drawings; inwhich the shank of the tool is threaded at 39 and the upper end thereofformedwith a countersunk socket Iii constituting a wrenchhead.

It will be noted that by employing an interio 1y threaded tubular doweland extracting pin in connection therewith, it;is not necessary, toextend the opening for the dowel pin entirely through the die shoeto'permit removalof the of said sleeves formed with angular faces 28 topermitsaid faces to be grasped by a wrench or other suitable tool torotate the same. In this form of the device, the upper surface of thecut-' ting steel is cut away, as indicated at 24, to ac-' commodate awrench when rotating the expansibie sleeves. In all other respects thedevice shown in Figure 4 is similar'to that. shown in Figure 2 of thedrawings.

In Figure 5 of the drawings, there is illustrated another form of theinvention, in which a solid dowel 25 is employed, the lower end ofwhich- 1s exteriorly threaded at 20 for engagement-with correspondingthreads in the socket of the die shoe. In this form of the device, the

inner and; outer walls of the eccentric sleeves 21 and 28 are preferablytapered and the walls of the socket 2! in the cutting die arecorrespondingly tapered so as-to assist in holding the parts inadiuste'd.position when the central locking sleeve ll is rotated. The upper endof the dowel 2! is preferably provided with a socketil for the receptionof a tool to facilitate rotating the same in engagement with its socketin the die 'dowel as is generally the case as the lower end of theextracting pin, by engagement with the center of the tapered bottom wallof thesocket in'the' die shoe, will eflectually elevate and removethedowel from the die shoe without the necessity of introducing a releasingtool through the bottom of the die shoe to eflect the removal of thedowel as is now generally the case.

It, will thus be'seen that there is provided simple and compact meanswhereby any desired lateral adjustment of the cutting steel withrespectto the die shoe can be effected and the parts locked in'a setposition of adjustment to permit'removal' and replacement of the cuttingsteel without disturbing or in any manner affecting-said adjustment,thereby not only facilitating and expediting work on metal cutting, andbending machines but also reducing cost of such work to aminimum.

' From theforegoing description, it is thought that the construction andoperation of the device will be readily understood by those skilled inthe art and further description thereof is deemed unnecessary. a v

, Having thus described the invention, what is claimed as new is:

l. The combination with relatively stationary and movable members, of anadjusting device inmummy threaded "dowel it is shown conand movablemembers, of an adjusting device including inner and outer eccentricsleeves mounted on one of said members for adjusting the movable memberlaterally with respect to the stationary member, a dowel connecting thestationary and movable members, and a locking sleeve interposed betweenthe dowel and the inner eccentric sleeve for locking said sleeves in aset position of adjustment.

3. The combination with relatively stationary and movable members, of anadjusting device including inner and outer expansible eccentric sleevesmounted on the movable member for adjusting said movable memberlaterally with respect to the stationary member, a dowel connecting thestationary and movable members, and a locking sleeve interposed betweenthe dowel and inner eccentric sleeve for locking said sleeves in a setposition of adjustment, said movable member, eccentric sleeves, lockingsleeve and dowel being removable as a unit from the stationary memberwithout affecting the adjustment 01' said eccentric sleeves.

4. The combination with relatively stationary and movable members, 01 anadjusting deviceineluding inner and outer expansible eccentric sleevesmounted on one of said members for adjusting the movable memberlaterally with respect to the stationary member, the inner eccentricsleeve being tapered and provided with a threaded portion. a dowelconnecting the stationary and movable members, and a locking sleeveinterposed between the dowel and the inner eccentric sleeve and providedwith threads engaging the threads on said inner sleeve for holding saidsleeves in adjusted position when said stationary and movable membersare separated.

5. The combination with relatively stationary eluding inner and outerexpansible eccentric sleeves mounted on/one of said members foradjusting the movable member laterally with respect to the stationarymember, the inner wall 01' the inner sleeve being tapered and providedwith threads, a hollow dowel connecting the stationary and movablemembers and provided with interior threads for engagement with anejecting pin, and a tapered locking sleeve receiving the hollow doweland provided with threads engaging the threads on the inner eccentricsleeve to: holding both sleeves in adjusted position when the stationaryand movable members are separated.

6...The combination with relatively stationary and movable members, oneof which is provided with a socket and the other with a seat, of anadjusting device including inner and outer expansible eccentric sleevesmounted in said socket, a locking sleeve having threaded engagement withthe inner eccentric sleeve for holding said sleeves in a set position'ofadjustment, the upper portion oi. the locking sleeve being provided witha tool receiving socket, and a tubular dowel extending through thelocking sleeve and engaging said seat.

7. The combination with relatively stationa y and movable members, of anadjusting device mounted on one 01' the members and includinglongitudinally split nestedeccentric sleeves, one

. of which is tapered downwardly and provided d and movable members, anadjusting device inwith threads, a centrally disposed tapered lockingsleeve havingits lower portion threaded for engagement with the threadson the adjacent eccentric sleeve for locking said sleeves in a set 7position of adjustment, the upper portion of the locking sleeve beingprovided with a tool receiving socket, a hollow dowel fitting within thelocking sleeve and connecting the stationary and movable members, theinterior walls of said dowel being threaded for engagement with acorrespondingly threaded dowel ejecting tool.

8. The combination with relatively stationary and movable members, of aninteriorly threaded hollow dowel connecting said members, and anejecting pin having threads engaging the threads on the dowel andadapted to bear against the stationary member for ejecting said dowelwhen the pin is rotated.

9. The combination with relatively stationary and movable members, oneof which is provided with an opening and the other with a seatregistering therewith, of a hollow dowel fitted in said opening and seatand connecting said members, the interior walls of the dowel at thelower end thereof being threaded, and an ejecting pin provided withthreads for engagement with the threads on the dowel and having itslower end provided with a substantially conical boss adapted to bearagainst the bottom wall of said seat for ejecting the dowel when saidpin is rotated.

10. The combination with relatively stationary and movable members, 01'an adjusting device including inner and outer longitudinally splitcccentric sleeves mounted on one of said members for adjusting themovable member laterally with respect to the stationary member, acentral locking sleeve having threaded engagement with the innereccentric sleeve for holding said eccentric sleeves in a set position ofadjustment when the stationary and movable members are separated, ahollow dowel extending through the locking sleeve ior connecting thestationary and movable members, said dowel being provided with interiorthreads, and an ejecting pin cngasing the threads on the dowel andbearing against the stationary membe -ior elevating the dowel,

the eccentric sleeves, ejecting pin being locking sleeve, dowel andmovable together as a unit with the movable member when said members amseparated.

11. The combination with and movable members, of an adjusting deviceincluding nested eccentric sleeves mounted on once! said members, adowel connecting the stationary and movable members. and a lockingsleeve interposed between the dowel and the adjacent eccentric sleevefor locking said sleeves in a set position of adjustment, the movablemember and its associated parts being removable as a unit from thestationary member without silecting the adjustment of said eccentricsleeves.

12. The combination with and movable members, of a hollow dowelconnecting said members, and means operable within the hollow dowel andcoacting with the stationary member for ejecting said hollow dowel whendownward pressure is exerted on the ejecting means.

JOSEPH H. M. MICRON.

relatively stationary relatively stationary-

